套管靴;
Make a wiper trip to the 20 inch casing shoe.
短起下到20英寸套管鞋.
Both the guide shoe and the casing shoe have already been connected.
引鞋和套管鞋都已接好.
First, connect the guide shoe and the casing shoe.
先接好引鞋和套管鞋.
We are connecting the guide shoe and the casing shoe.
我们正在接引鞋和套管鞋.
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